Howe, RCT and Woodward, RI and Hu, G and Yang, Z and Kelleher, EJR and Hasan, T (2016) Surfactant-aided exfoliation of molydenum disulphide for ultrafast pulse generation through edge-state saturable absorption. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 253. pp. 911-917. ISSN 0370-1972 (Unpublished)
Full text not available from this repository.Abstract
We use liquid phase exfoliation to produce dispersions of molybdenum disulphide (MoS2) nanoflakes in aqueous surfactant solutions. The chemical structures of the bile salt surfactants play a crucial role in the exfoliation and stabilization of MoS2. The resultant MoS2 dispersions are heavily enriched in single and few (<6) layer flakes with large edge to surface area ratio. We use the dispersions to fabricate free-standing polymer composite wide-band saturable absorbers to develop mode-locked and Q- switched fibre lasers, tunable from 1535-1565 and 1030-1070 nm, respectively. We attribute this sub-bandgap optical absorption and its nonlinear saturation behaviour to edge-mediated states introduced within the material band-gap of the exfoliated MoS2 nanoflakes.
Item Type: | Article |
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Uncontrolled Keywords: | cond-mat.mtrl-sci cond-mat.mtrl-sci |
Subjects: | UNSPECIFIED |
Divisions: | Div B > Solid State Electronics and Nanoscale Science |
Depositing User: | Cron Job |
Date Deposited: | 17 Jul 2017 19:07 |
Last Modified: | 02 Mar 2021 09:12 |
DOI: |